Thousands of residents in Canada's western province of British Columbia remained without power on Tuesday a day after a winter storm swept through the region. Heavy snowstorm has left up to 40 cm of snow in some areas and highways and schools closed. BC Hydro spokeswoman Simi Heer said closed roads and icy conditions had led to difficulties in restoring power. As of Tuesday morning, more than 2,000 customers in west coast area and over 1,000 residents in the interior were left without electricity. Nearly three dozen warnings remained in effect on Tuesday about winter storms, rainfall, snowfall and extreme cold across the province except for South Coast and Metro Vancouver. The Ministry of Transportation's DriveBC website said several highways were closed because of the storm. The ministry warned that moderate snow and high winds were increasing avalanche hazard.